Other Applications - Graf EcoBloc Inspect flex Manual Para El Uso Y El Mantenimiento

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7. Maintaining the infiltration/attenuation system
As described above, dirt may reduce the performance of the infiltration/attenuation system. Drops in
performance can be checked using e.g. tests with a defined volume.
The volume and duration for a test can be estimated and compared using the sizing documents according
to DWA A-138.
If the infiltration performance deviates by ≥ 25 %, we would recommend using inspection equipment to
check the system. Coarse particles or dirty geo textile impairing the infiltration performance can be
removed with appropriate high-pressure purging probes. The general condition, for example, correct
installation or changes to the system over time, can also be checked with Inspection equipment.
Local drain Inspection companies can inspect and rinse the systems.
8.

Other applications

This documentation only relates to use of the GRAF EcoBloc infiltration/attenuation systems for retaining,
storing or infiltrating surface & rainwater. Any other use of the infiltration/attenuation system must be
agreed with Otto GRAF GmbH from a technical, material and/or structural viewpoint.
Should special requirements apply, we would also recommend contacting architects or planners with
knowledge of hydrology and geology.
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